On Thu, Jan 16, 2003 at 10:10:43PM +0100, Bill Allombert wrote:
> Now the problem is that g++ reject longjmp(e, numerr); and gcc reject
> longjmp((jmp_buf) e, numerr) so making code that work with both is
> difficult.
Unrelated thing: it does not make sense to longjmp() with numerr; one needs to longjmp() with HAVE_ERROR (which is, e.g., 1) after storing
saved_numerr = numerr;
This is from docs of setjmp() I have:
setjmp() may be implemented as macro. setjmp() can be used only
in the following contexts:
- the entire controlling expression of a do, if, switch, or while
statement
- the operand to the ! operator if the resulting expression is the
entire controlling expression of one of the statements listed
above
- the operand of a relational or equality operator if the
resulting expression is the entire controlling expression of one
of the statements listed above and the other operand is an
integral constant expression
- the entire expression of an expression statement.
As you see, there is no way to get the value of numerr from setjmp()
[unless we have a switch with one clause per error].
BTW, I fixed the problem of numerr able of being 0 in my copy; I will
send a patch some time soon.
Ilya